MacBook Pro models with 13" displays

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Is it possible to connect an RFID reader/writer module directly to a M

I'm a hobbyist, just starting out.

I would like to be able to work with an RFID reader/writer module like this one: http://www.kynix.com/Product/Cate/747.ht....

All of the solutions I have seen online for doing this so far involve connecting the RFID reader/writer module to an Arduino or Raspberry Pi and then connecting one of those to a larger computer (like a MacBook).

Why are they doing this? Why use a Raspberry Pi at all for something like this when you have a MacBook at your disposal? Is it because the RFID reader/writer uses SPI connections? If so, why not just use a SPI-USB bridge/converter between the RFID reader/writer module and the MacBook?

I'm obviously missing something and I know it. I'm new to this stuff. I'm not trying to be critical - I'm just asking questions.

Answered! View the answer I have this problem too

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@chulian - We mostly fix things here Vs design or build devices like what you are trying to do. There are other sites and user groups that have people who could better explain things Raspberry Pi - User groups and events

To answer at the higher level of your question it's a matter of dialog & smarts! The raw RFID chip still needs to have some smarts behind it and have the ability to talk with the MacBook Pro (or other master computer). This is why you use the Raspberry Pi as the middle man as it has the smarts & I/O to interface with the RFID reader and then convert the dialog to something the master computer is able to understand over a common interface (USB here).

Don't forget your MacBook Pro does not have any direct interface (physical I/O) or software support to 'plug in' the RFID chip directly.

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